Fix LRO operation status model not generation issue

packages/typespec-ts/src/modular/emitModels.ts

@@ -46,10 +46,7 @@ import path from "path";
 import { refkey } from "../framework/refkey.js";
 import { useContext } from "../contextManager.js";
 import { isMetadata, isOrExtendsHttpFile } from "@typespec/http";
-import {
-  isAzureCoreErrorType,
-  isAzureCoreLroType
-} from "../utils/modelUtils.js";
+import { isAzureCoreErrorType } from "../utils/modelUtils.js";
 import { isExtensibleEnum } from "./type-expressions/get-enum-expression.js";
 import {
   getAllDiscriminatedValues,
@@ -109,9 +106,6 @@ export function emitTypes(
     if (!isGenerableType(type)) {
       continue;
     }
-    if (isAzureCoreLroType(type.__raw)) {
-      continue;
-    }
 
     const namespaces = getModelNamespaces(context, type);
     const filepath = getModelsPath(sourceRoot, namespaces);

packages/typespec-ts/src/utils/modelUtils.ts

@@ -1708,14 +1708,6 @@ export function trimUsage(model: any) {
   return ordered;
 }
 
-export function buildCoreTypeInfo(program: Program, t?: Type) {
-  return isAzureCoreErrorType(program, t)
-    ? "ErrorType"
-    : isAzureCoreLroType(t)
-      ? "LroType"
-      : undefined;
-}
-
 export function isAzureCoreErrorType(program: Program, t?: Type): boolean {
   if (!t || t.kind !== "Model") {
     return false;
@@ -1731,26 +1723,6 @@ export function isAzureCoreErrorType(program: Program, t?: Type): boolean {
   return isAzureCoreFoundationsNamespace(effective);
 }
 
-// Check if the type in the Azure.Core.Foundations has an LRO type in core
-export function isAzureCoreLroType(t?: Type): boolean {
-  if (
-    !(
-      ((t?.kind === "Enum" || t?.kind === "Union") &&
-        ["operationstate"].includes((t.name ?? "").toLowerCase())) ||
-      (t?.kind === "Model" &&
-        ["resourceoperationstatus", "operationstatus"].includes(
-          t.name.toLowerCase()
-        ))
-    )
-  ) {
-    return false;
-  }
-  return (
-    isAzureCoreFoundationsNamespace(t) ||
-    isAzureCoreFoundationsNamespace(t, true)
-  );
-}
-
 function isAzureCoreFoundationsNamespace(
   t?: Type,
   skipFoundation: boolean = false

packages/typespec-ts/test/modularUnit/scenarios/apiOperations/azureCoreOperations.md

@@ -0,0 +1,201 @@
+# should handle Azure Core LRO operations without placeholder issues
+
+Azure Core LRO operations should generate proper TypeScript code without unresolved placeholders.
+
+## TypeSpec
+
+```tsp
+using Azure.Core.Traits;
+
+/** A widget. */
+@resource("widgets")
+model WidgetSuite {
+  /** The widget name. */
+  @key
+  name: string;
+
+  /** The ID of the widget's manufacturer. */
+  manufacturerId: string;
+
+  /** The faked shared model. */
+  sharedModel?: FakedSharedModel;
+}
+
+/** Faked shared model */
+model FakedSharedModel {
+  /** The tag. */
+  tag: string;
+
+  /** The created date. */
+  createdAt: offsetDateTime;
+}
+
+alias ServiceTraits = Azure.Core.Traits.SupportsRepeatableRequests &
+  Azure.Core.Traits.SupportsConditionalRequests &
+  Azure.Core.Traits.SupportsClientRequestId;
+
+alias Operations = Azure.Core.ResourceOperations<ServiceTraits>;
+
+interface Widgets {
+  @doc("Get the status of a long-running operation on widgets.")
+  getWidgetOperationStatus is Operations.GetResourceOperationStatus<WidgetSuite>;
+}
+```
+
+The config would be like:
+
+```yaml
+needAzureCore: true
+```
+
+## Operations
+
+```ts operations
+import { TestingContext as Client } from "./index.js";
+import {
+  ResourceOperationStatusWidgetSuiteWidgetSuiteError,
+  resourceOperationStatusWidgetSuiteWidgetSuiteErrorDeserializer,
+} from "../models/models.js";
+import { expandUrlTemplate } from "../static-helpers/urlTemplate.js";
+import { GetWidgetOperationStatusOptionalParams } from "./options.js";
+import {
+  StreamableMethod,
+  PathUncheckedResponse,
+  createRestError,
+  operationOptionsToRequestParameters,
+} from "@azure-rest/core-client";
+
+export function _getWidgetOperationStatusSend(
+  context: Client,
+  apiVersion: string,
+  name: string,
+  operationId: string,
+  options: GetWidgetOperationStatusOptionalParams = { requestOptions: {} },
+): StreamableMethod {
+  const path = expandUrlTemplate(
+    "/widgets/{name}/operations/{operationId}{?api%2Dversion}",
+    {
+      name: name,
+      operationId: operationId,
+      "api%2Dversion": apiVersion,
+    },
+    {
+      allowReserved: options?.requestOptions?.skipUrlEncoding,
+    },
+  );
+  return context
+    .path(path)
+    .get({
+      ...operationOptionsToRequestParameters(options),
+      headers: {
+        accept: "application/json",
+        ...options.requestOptions?.headers,
+      },
+    });
+}
+
+export async function _getWidgetOperationStatusDeserialize(
+  result: PathUncheckedResponse,
+): Promise<ResourceOperationStatusWidgetSuiteWidgetSuiteError> {
+  const expectedStatuses = ["200"];
+  if (!expectedStatuses.includes(result.status)) {
+    throw createRestError(result);
+  }
+
+  return resourceOperationStatusWidgetSuiteWidgetSuiteErrorDeserializer(
+    result.body,
+  );
+}
+
+/** Get the status of a long-running operation on widgets. */
+export async function getWidgetOperationStatus(
+  context: Client,
+  apiVersion: string,
+  name: string,
+  operationId: string,
+  options: GetWidgetOperationStatusOptionalParams = { requestOptions: {} },
+): Promise<ResourceOperationStatusWidgetSuiteWidgetSuiteError> {
+  const result = await _getWidgetOperationStatusSend(
+    context,
+    apiVersion,
+    name,
+    operationId,
+    options,
+  );
+  return _getWidgetOperationStatusDeserialize(result);
+}
+```
+
+Generate the models
+
+```ts models
+import { ErrorModel } from "@azure-rest/core-client";
+
+/** Provides status details for long running operations. */
+export interface ResourceOperationStatusWidgetSuiteWidgetSuiteError {
+  /** The unique ID of the operation. */
+  id: string;
+  /** The status of the operation */
+  status: OperationState;
+  /** Error object that describes the error when status is "Failed". */
+  error?: ErrorModel;
+  /** The result of the operation. */
+  result?: WidgetSuite;
+}
+
+export function resourceOperationStatusWidgetSuiteWidgetSuiteErrorDeserializer(
+  item: any,
+): ResourceOperationStatusWidgetSuiteWidgetSuiteError {
+  return {
+    id: item["id"],
+    status: item["status"],
+    error: !item["error"] ? item["error"] : item["error"],
+    result: !item["result"]
+      ? item["result"]
+      : widgetSuiteDeserializer(item["result"]),
+  };
+}
+
+/** Enum describing allowed operation states. */
+export type OperationState =
+  | "NotStarted"
+  | "Running"
+  | "Succeeded"
+  | "Failed"
+  | "Canceled";
+
+/** A widget. */
+export interface WidgetSuite {
+  /** The widget name. */
+  name: string;
+  /** The ID of the widget's manufacturer. */
+  manufacturerId: string;
+  /** The faked shared model. */
+  sharedModel?: FakedSharedModel;
+}
+
+export function widgetSuiteDeserializer(item: any): WidgetSuite {
+  return {
+    name: item["name"],
+    manufacturerId: item["manufacturerId"],
+    sharedModel: !item["sharedModel"]
+      ? item["sharedModel"]
+      : fakedSharedModelDeserializer(item["sharedModel"]),
+  };
+}
+
+/** Faked shared model */
+export interface FakedSharedModel {
+  /** The tag. */
+  tag: string;
+  /** The created date. */
+  createdAt: string;
+}
+
+export function fakedSharedModelDeserializer(item: any): FakedSharedModel {
+  return {
+    tag: item["tag"],
+    createdAt: item["createdAt"],
+  };
+}
+```